Referring to the debug output shown, which two statements are true?(Choose two)

A.
The OSPF neighbors are using MD5 Authentication

B.
Both R1 (local) router and the remote OSPF neighbor are not directly connected to Area 0

C.
The R1 (local) router is the DR

D.
The OSPF neighbors are establishing a virtual link

E.
The remote OSPF neighbor has an OSPF Router ID of 3.3.3.3

Explanation:
Explanation
debug ospf flood
To display information about flood events such as acknowledgments and updates received, use the debug ospf flood command in EXEC mode. To disable debugging output, use the no form of this command.
debug ospf instance-name flood [access-list-name]
no debug ospf instance-name flood [access-list-name]
Syntax Description

Defaults
Debugging is disabled.
Command Modes
EXEC
Command History

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.
Debugging output is assigned high priority in the CPU process and, therefore, can affect system performance. For more information about the impact on system performance when using debug commands, refer to Using Debug Commands on Cisco IOS XR Software. Use the debug ospf flood command to display messages containing information related to flood events.

The debug ospf flood command generates a substantial amount of output. Use the command only when traffic on the IP network is low so that other activity on the system is not adversely affected.

Task ID

Examples
The following is sample output from the debug ospf flood command:

RP/0/RP0/CPU0:router# debug ospf 1 flood
RP/0/RP0/CPU0:33:19: ospf[239]: Rcv Update Type 2, LSID 192.168.20.207, Adv rtr 192.168.20.207, age 764, seq 0x80000001
RP/0/RP0/CPU0:33:19: ospf[239]: Mask 255.255.255.0
RP/0/RP0/CPU0:33:19: ospf[239]: %ROUTING-OSPF-5-ADJCHG : Process 1, Nbr 192.168.20.207 on
GigabitEthernet0/2/0/0 from LOADING to FULL, Loading Done RP/0/RP0/CPU0:33:19: ospf[239]: Sending update on GigabitEthernet0/2/0/0 to 192.168.20.207 Area 0
RP/0/RP0/CPU0:33:19: ospf[239]: Send Type 1, LSID 1.1.1.1, Adv rtr 1.1.1.1, age 40, seq 0x80000001 (0)
RP/0/RP0/CPU0:33:19: ospf[239]: Inc retrans unit nbr count index 1 (0/1) to 1/1 RP/0/RP0/CPU0:33:19: ospf[239]: Set Nbr 192.168.20.207 1 first flood info from 0 (0) to 0x81e1994 (18)
RP/0/RP0/CPU0:33:19: ospf[239]: Init Nbr 192.168.20.207 1 next flood info to 0x81e1994 RP/0/RP0/CPU0:33:19: ospf[239]: Add Type 1 LSA ID 1.1.1.1 Adv rtr 1.1.1.1 Seq 80000002 to GigabitEthernet0/2/0/0 192.168.20.207 retransmission list RP/0/RP0/CPU0:33:19: ospf[239]: Start GigabitEthernet0/2/0/0 192.168.20.207 retrans timer RP/0/RP0/CPU0:33:19: ospf[239]: Set idb next flood info from 0 (0) to 0x81e1994 (18) RP/0/RP0/CPU0:33:19: ospf[239]: Add Type 1 LSA ID 1.1.1.1 Adv rtr 1.1.1.1 Seq 80000002 to GigabitEthernet0/2/0/0 flood list
RP/0/RP0/CPU0:33:19: ospf[239]: Start GigabitEthernet0/2/0/0 pacing timer for 0.000001 msec
RP/0/RP0/CPU0:33:19: ospf[239]: Flooding update on GigabitEthernet0/2/0/0 to 224.0.0.5 Area 0
RP/0/RP0/CPU0:33:19: ospf[239]: Send Type 1, LSID 1.1.1.1, Adv rtr 1.1.1.1, age 1, seq 0x80000002 (0)
RP/0/RP0/CPU0:33:19: ospf[239]: Create retrans unit 0x81e0178/0x81df818 1 (0/1) 1 RP/0/RP0/CPU0:33:19: ospf[239]: Set nbr 1 (0/1) retrans to 4976 count to 1 RP/0/RP0/CPU0:33:19: ospf[239]: Set idb next flood info from 0x81e1994 (18) to 0 (0) RP/0/RP0/CPU0:33:19: ospf[239]: Remove Type 1 LSA ID 1.1.1.1 Adv rtr 1.1.1.1 Seq 80000002 from GigabitEthernet0/2/0/0 flood list
RP/0/RP0/CPU0:33:19: ospf[239]: Stop GigabitEthernet0/2/0/0 flood timer RP/0/RP0/CPU0:33:21: ospf[239]: Sending delayed ACK on GigabitEthernet0/2/0/0 RP/0/RP0/CPU0:33:21: ospf[239]: Ack Type 1, LSID 192.168.20.207, Adv rtr 192.168.20.207, age 764, seq 0x80000003
RP/0/RP0/CPU0:33:21: ospf[239]: Ack Type 2, LSID 192.168.20.207, Adv rtr 192.168.20.207, age 764, seq 0x80000001
RP/0/RP0/CPU0:33:21: ospf[239]: Received ACK from 192.168.20.207 on GigabitEthernet0/2/0/0 RP/0/RP0/CPU0:33:21: ospf[239]: Rcv Ack Type 1, LSID 1.1.1.1, Adv rtr 1.1.1.1, age 40, seq 0x80000001
RP/0/RP0/CPU0:33:24: ospf[239]: Retransmitting update on GigabitEthernet0/2/0/0 to 192.168.20.207 Area 0